What was found
RT DUCT PRESSURE FLUCTUATES DURING DESCENT, WITH ENG RUNNING, LT & RT ISOL VLVS CLSD, & BLD SW ON. DUCT PSI FLUCTUATES BETWEEN 998. CREW COMMENTS: 18 PSI TO 32 PSI. FLUX ALSO SEEN IN EPR +-- .03 AND N1+-- .3.
- Difficulty date
- July 7, 2008
- Submitted
- July 15, 2008
- Operation
- Air carrier
- Aircraft
- N673UA
- Make and model
- Boeing 767322
- Aircraft serial
- 29241
- Aircraft time
- 30,010 hours, 8,133 cycles
- Engine
- Pwa PW4052
- System (JASC)
- 3600 · Pneumatic System
- Part
- Pneumatic System
- Condition
- Fluctuates
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.